The sentence I would choose is: "He was looking down at his outstretched hands as he talked". To me, it implies that he cannot look into the eyes of the person he is speaking to, as if he doesn't feel he is worthy.
Can you show me the 'following?'
Based on the sentences from ‘The Cask of Amontillado’, the
literary technique that is employed in the sentence is foreshadowing. This is a
way of having a writer or author give its reader an idea of what would likely
occur later on.